APA (7th ed.) Citation

United States. Office of Naval Intelligence. (1997). Worldwide submarine challenges. The Office.

Chicago Style (17th ed.) Citation

United States. Office of Naval Intelligence. Worldwide Submarine Challenges. [Washington, D.C.?]: The Office, 1997.

MLA (9th ed.) Citation

United States. Office of Naval Intelligence. Worldwide Submarine Challenges. The Office, 1997.

Warning: These citations may not always be 100% accurate.